Sofa with adjustable cushion

Abstract

The utility model discloses a sofa with an adjustable cushion. The sofa comprises a seat frame, the cushion and a telescopic mechanism, the seat frame is provided with a containing space, the seat frame is provided with a first opening in the height direction of the seat frame, the seat cushion is located above the seat frame in the height direction, and the seat cushion is rotatably connected to the seat frame and seals or opens the first opening. The telescopic mechanism comprises a fixed part and a limiting part, the fixed part is arranged in the containing space, the sliding part is located away from the end, rotationally connected with the seat frame, of the cushion, one end of the sliding part is arranged on the cushion, the other end of the sliding part is connected to the fixed part, and the sliding part is provided with a limiting part used for limiting relative sliding of the sliding part and the fixed part. According to the sofa with the adjustable cushion, the telescopic mechanism is utilized, so that one side of the cushion can rotate relative to the seat frame, and the other side of the cushion can ascend or descend through the telescopic mechanism, so that the inclination angle of the cushion relative to the seat frame is changed to adapt to the sitting posture or lying posture of a human body, and the adaptability of the sofa to the body of a user is improved.

Description

Technical Field

[0001] This application relates to the field of furniture, and particularly to a sofa with an adjustable seat cushion. Background Art

[0002] Currently, most of the sofas on the market have a relatively fixed shape, and the seat cushions of the sofas are usually flat. For example, the flat seat cushion does not match the natural curves of the human legs and the lumbar spine, resulting in the sofa being difficult to adapt to the postures of different users when sitting or lying on the sofa, and the human body adaptability is not strong. Summary of the Utility Model

[0003] An embodiment of this application discloses a sofa with an adjustable seat cushion for improving the adaptability of the sofa to the human body curve.

[0004] To achieve the above object, in a first aspect, this application discloses a sofa with an adjustable seat cushion, including:

[0005] A seat frame having a receiving space, the seat frame having a first opening along its own height direction, and the first opening communicating with the receiving space;

[0006] A seat cushion located above the seat frame along the height direction, the seat cushion being rotatably connected to the seat frame, and the seat cushion being rotatable relative to the seat frame to cover or open the first opening; and

[0007] A telescopic mechanism including a fixed member and a sliding member, the fixed member being disposed in the receiving space, the sliding member being located at an end away from the rotatable connection between the seat cushion and the seat frame, one end of the sliding member being disposed on a side of the seat cushion facing the receiving space, the other end of the sliding member being slidably connected to the fixed member along the height direction, and a limiting portion being provided on the sliding member, the limiting portion being configured to limit the sliding position of the sliding member relative to the fixed member.

[0008] As an optional implementation manner, a sliding groove is opened in the fixed member along the height direction, and the sliding member is slidably connected to the sliding groove;

[0009] A plurality of clamping positions are sequentially provided on the fixed member along the height direction, and the limiting portion is configured to be connected to one of the clamping positions to limit the sliding position of the sliding member relative to the sliding groove.

[0010] As an optional implementation manner, the clamping position is a clamping groove opened on at least one side wall of the sliding groove, and the clamping groove communicates with the sliding groove, the clamping groove extends along a direction inclined to the height direction, so that an included angle is formed between the extending direction of the clamping groove and the extending direction of the sliding groove, and the angle of the included angle is 10° - 85°.

[0011] As an alternative embodiment, the card slot is an arc-shaped card slot, and the limiting portion is configured as a spherical bump or a columnar bump.

[0012] As an alternative embodiment, the sofa further includes a backrest and two armrests. The seat frame has a first end and a second end. The backrest is provided at the first end, and the two armrests are provided on the seat frame and are located on both sides of the backrest.

[0013] The first end is hinged to the cushion, and the fixing member is provided at the second end.

[0014] As an alternative embodiment, along the height direction, the plane where the first end is located is lower than the plane where the second end is located.

[0015] As an alternative embodiment, the seat frame has a first end and a second end. Along the height direction, the plane where the first end is located is higher than the plane where the second end is located.

[0016] As an alternative embodiment, the seat frame includes a frame portion and an enclosing portion. The frame portion has the receiving space and the first opening. The enclosing portion is disposed around the outer periphery of the frame portion. A second opening is provided on the enclosing portion. The second opening communicates with the receiving space, and the second opening is adjacent to the telescopic mechanism.

[0017] In a second aspect, the present application also discloses a sofa with an adjustable cushion, including a sofa body. The sofa body includes a first seat frame and a first cushion. The first cushion is located above the first seat frame along the height direction of the sofa, and the first cushion is rotatably connected to the first seat frame.

[0018] A sofa footrest, the sofa footrest includes a second seat frame and a second cushion. The second cushion is provided above the second seat frame along the height direction of the sofa.

[0019] A telescopic mechanism, the telescopic mechanism is provided on the sofa body, and the telescopic mechanism is configured to adjust the rotation angle of the first cushion relative to the first seat frame.

[0020] As an alternative embodiment, the second cushion is rotatably connected to the second seat frame.

[0021] There are two telescopic mechanisms. One telescopic mechanism is provided on the sofa body, and the other telescopic mechanism is provided on the sofa footrest.

[0022] Wherein, the telescopic mechanism includes a fixed member and a sliding member. The two fixed members are respectively arranged on the first seat frame and the second seat frame, the two sliding members are respectively arranged on the first seat cushion and the second seat cushion, the sliding member is slidably connected to the fixed member, and a limiting portion is arranged on each of the two sliding members. The limiting portion is configured to limit the sliding position of the sliding member relative to the fixed member.

[0023] Compared with the prior art, the beneficial effects of the present application are as follows:

[0024] The present application discloses a sofa with an adjustable seat cushion, including a seat frame, a seat cushion, and a telescopic mechanism. Among them, the seat frame has a receiving space, and the seat frame has a first opening along its height direction, and the first opening communicates with the receiving space. The seat cushion is located above the seat frame along the height direction, the seat cushion is rotatably connected to the seat frame, and the seat cushion can rotate relative to the seat frame to cover or open the first opening. The telescopic mechanism includes a fixed member and a sliding member. The fixed member is arranged in the receiving space, the sliding member is located at one end away from the rotatable connection between the seat cushion and the seat frame, one end of the sliding member is arranged on the side of the seat cushion facing the receiving space, and the other end is connected to the fixed member along the height direction. A limiting portion is arranged on the sliding member, and the limiting portion is configured to limit the sliding position of the sliding member relative to the fixed member. The sofa with an adjustable seat cushion of the present application connects the seat cushion and the seat frame through the telescopic mechanism, so that while one side of the seat cushion can rotate relative to the seat frame, the other side of the seat cushion can be raised or lowered through the telescopic mechanism. In this way, the inclination angle of the plane where the seat cushion is located relative to the plane where the seat frame is located can be changed, so that the user can adjust the inclination angle of the seat cushion according to his own needs to adapt to his sitting or lying posture, thereby improving the adaptability of the sofa to the user's body and being beneficial to enhancing the use experience of the sofa. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is an exploded view of the first structure of a sofa with an adjustable seat cushion disclosed in the embodiment of the present application;

[0027] Figure 2 It is a side view of the first structure of a sofa with an adjustable seat cushion disclosed in the embodiment of the present application;

[0028] Figure 3 It is a schematic diagram of the second structure of a sofa with an adjustable seat cushion disclosed in the embodiment of the present application;

[0029] Figure 4Schematic structural diagram of the telescopic mechanism disclosed in the embodiments of the present application;

[0030] Figure 5 It is the third schematic structural diagram of a sofa with an adjustable seat cushion disclosed in the embodiments of the present application.

[0031] Explanation of reference numerals:

[0032] 100, sofa with adjustable seat cushion; 1, seat frame; 1a, first opening; 1b, receiving space; 11, enclosing part; 12, frame part; 1c, second opening; 1d, first end; 1e, second end; 2, seat cushion; 3, telescopic mechanism; 31, fixing member; 311, sliding groove; 312, clamping position; 32, sliding member; 321, limiting part; 4, backrest; 5, armrest; 101, sofa body; 101a, first seat frame; 101b, first seat cushion; 102, sofa footrest; 102a, second seat frame; 102b, second seat cushion. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0034] In the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0035] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific circumstances.

[0036] In addition, the terms "installed", "set", "provided with", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0037] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0038] The technical solution of the present application will be further described below in conjunction with embodiments and drawings.

[0039] First, please refer to Figures 1 to 4 The present application discloses a sofa 100 with an adjustable seat cushion, comprising a seat frame 1, a seat cushion 2 and a telescopic mechanism 3. The seat frame 1 has a receiving space 1b, and the seat frame 1 has a first opening 1a along its own height direction, and the first opening 1a is connected to the receiving space 1b. The seat cushion 2 is located above the seat frame 1 along the height direction, and the seat cushion 2 is rotatably connected to the seat frame 1. The seat cushion 2 can be rotated relative to the seat frame 1 to cover or open the first opening 1a. The telescopic mechanism 3 includes a fixing member 31 and a sliding member 32, the fixing member 31 is arranged in the receiving space 1b, the sliding member 32 is located at the end away from the seat cushion 2 and the seat frame 1. One end of the sliding member 32 is arranged on the side of the seat cushion 2 facing the receiving space 1b, and the other end is connected to the fixing member 31 along the height direction. A limiting portion 321 is provided on the sliding member 32, and the limiting portion 321 is configured to limit the sliding position of the sliding member 32 relative to the fixing member 31.

[0040] The sofa 100 with adjustable cushions of the present application connects the cushion 2 and the seat frame 1 through the telescopic mechanism 3, so that one side of the cushion 2 can be rotated relative to the seat frame 1, while the other side of the cushion 2 can be raised or lowered through the telescopic mechanism 3. In this way, the inclination angle of the plane where the cushion 2 is located relative to the plane where the seat frame 1 is located can be changed, so that the user can adjust the inclination angle of the cushion 2 according to their own needs to adapt to their own sitting or lying posture, so that the sofa is more adaptable to the user's body, which is conducive to improving the use experience of the sofa. In addition, since the seat frame 1 has a storage space 1b inside, the user can lift the cushion 2 relative to the seat frame 1 through the telescopic mechanism 3, so that the first opening 1a can be exposed. At this time, the user can place items in the storage space 1b through the first opening 1a for storage, thereby realizing the storage function of the sofa.

[0041] Optionally, the fixing member 31 of the telescopic mechanism 3 can be arranged on the side of the seat frame 1 away from the receiving space 1b, and one end of the sliding member 32 is connected to the side of the seat cushion 2 away from the receiving space 1b. That is, the telescopic mechanism 3 is exposed outside the sofa as a whole, so that the user can adjust the telescopic mechanism 3 to adjust the inclination angle of the seat cushion 2.

[0042] For ease of understanding, Figure 1 The direction indicated by X is the height direction of the seat frame 1.

[0043] In some embodiments, the seat frame 1 includes a surrounding portion 11 and a frame portion 12. The frame portion 12 has a receiving space 1b and a first opening 1a. The surrounding portion 11 is disposed around the outer periphery of the frame portion 12. A second opening 1c is provided on the surrounding portion 11. The second opening 1c communicates with the receiving space 1b and is adjacent to the telescopic mechanism 3. In this way, the surrounding portion 11 can block the receiving space 1b from the outer periphery of the frame portion 12 to prevent dust from entering the receiving space 1b.

[0044] Exemplarily, after the second opening 1c is formed in one surrounding portion 11, the user can insert a hand into the second opening 1c to adjust the limiting portion 321, thereby adjusting the sliding position of the sliding member 32 in the fixing member 31. In this way, it is convenient for the user to directly adjust the extension or contraction of the telescopic mechanism 3.

[0045] Optionally, the seat frame 1 can be a circular seat frame or a square seat frame, and the present application does not make specific limitations here.

[0046] Please refer to Figure 2 , in some embodiments, the sofa further includes a backrest 4 and two armrests 5. The seat frame 1 has a first end 1d and a second end 1e. The backrest 4 is provided at the first end 1d or the second end 1e. The two armrests 5 are disposed on the seat frame 1 and on both sides of the backrest 4. Among them, the first end 1d of the seat frame 1 is hinged to the seat cushion 2, and the fixing member 31 is provided at the second end 1e. Similarly, the second end 1e of the seat frame 1 can be hinged to the seat cushion 2, and the fixing member 31 can be provided at the first end 1d. Hereinafter, the case where the backrest 4 is provided at the first end 1d and the fixing member 31 is provided at the second end 1e will be taken as an example for description. It can be understood that an included angle is formed between the seat cushion 2 and the backrest 4. When the seat cushion 2 is adjusted by the telescopic mechanism 3, the seat cushion 2 on one side of the second end 1e can rise along the height direction of the seat frame 1. When the seat cushion 2 on one side of the second end 1e rises to a certain height, the included angle between the seat cushion 2 and the backrest 4 can be configured to be an acute angle. In this way, the enclosed space formed by the backrest 4, the armrests 5 and the seat cushion 2 becomes smaller, which is beneficial to improving the wrapping property of the sofa for the user.

[0047] Considering that when the user lies on the sofa, it is easy to cause slippage, resulting in the user's buttocks slipping out of the range of the cushion 2. Optionally, along the height direction of the seat frame 1, the plane where the first end 1d is located is lower than the plane where the second end 1e is located. In other words, when viewed from the height direction of the seat frame 1, the first end 1d of the seat frame 1 is always lower than the second end 1e of the seat frame 1, and the connecting line direction between the first end 1d and the second end 1e is inclined with respect to the ground. Exemplarily, when the cushion 2 is disposed above the seat frame 1 along the height direction of the seat frame 1, the cushion 2 fits the seat frame 1. Thus, the surface of the cushion 2 is also inclined with respect to the ground. Also, since the fixing member 31 and the sliding member 32 of the telescopic mechanism 3 are both disposed at the second end 1e, when the telescopic mechanism 3 is adjusted upward in the height direction, one side of the cushion 2 rotates with respect to the first end 1d, and the other side of the cushion 2 rises in the height direction with respect to the second end 1e, and no matter how the telescopic mechanism 3 is adjusted, the side of the cushion 2 located at the first end 1d is always lower than the side of the cushion 2 located at the second end 1e. Specifically, reference can be made to Figure 3 shown, that is, the side of the cushion 2 facing the backrest 4 always remains inclined downward. When the user sits on the cushion 2, the side of the cushion 2 located at the second end 1e can always support the user's buttocks or thigh part, thereby preventing the user from slipping away from the side away from the backrest 4 when sitting on the cushion 2.

[0048] Please refer to Figure 3 , in some other embodiments, the seat frame 1 may not be provided with the backrest 4 and the armrest 5. At this time, the sofa 100 with adjustable cushion can also be used as a sofa footrest. Specifically, the backrest 4 and the armrest 5 are cancelled on the outer periphery of the seat frame 1, and the plane where the first end 1d of the seat frame 1 is located is higher than the plane where the second end 1e is located. When the cushion 2 is disposed on the seat frame 1, the cushion 2 inclines downward along the connecting line direction from the first end 1d to the second end 1e. Since the telescopic mechanism 3 is provided at the second end 1e, when the telescopic mechanism 3 is adjusted, the side of the cushion 2 located at the second end 1e can be configured to be lower than, flush with, or higher than the first end 1d, and the specific adjustment method can be adjusted according to the user's own comfortable position for the footrest.

[0049] For the convenience of understanding the specific solution of the telescopic mechanism 3, the following further description will be made in combination with the embodiments and the drawings.

[0050] Please refer to Figure 4, in some embodiments, the fixing member 31 is provided with a sliding groove 311 along the height direction of the seat frame 1, and the sliding member 32 is slidably connected to the sliding groove 311. The fixing member 31 is provided with a plurality of clamping positions 312 along the height direction of the seat frame 1, and the limiting portion 321 is configured to be connected to one of the clamping positions 312 to limit the sliding position of the sliding member 32 relative to the sliding groove 311. Specifically, when the user needs to adjust the tilt angle of the seat cushion 2, the user can reach into the second opening 1c with a hand and push the limiting portion 321 from the clamping position 312 to the sliding groove 311, so that the limiting portion 321 is not restricted by the clamping position 312, and thus the sliding member 32 can slide relative to the fixing member 31 in the sliding groove 311. When the seat cushion 2 is tilted to the position required by the user, the user can push the limiting portion 321 back to the clamping position 312 again, so that the sliding position of the sliding member 32 is locked. It can be seen that the structure of the telescopic mechanism 3 is simple, which is convenient for the user to adjust the telescopic mechanism 3 at any time, so as to adjust the sofa to adapt to the sitting or lying posture of the user.

[0051] To further improve the operation convenience of the telescopic mechanism 3, optionally, the clamping position 312 can be an opening formed in the fixing member 31. The user can insert another limiting block or limiting post into the opening and connect the limiting post or limiting block to the limiting portion 321, so that the sliding member 32 is restricted at the position where the opening is located.

[0052] The clamping position 312 can also be a card slot formed on at least one side wall of the sliding groove 311, and the card slot communicates with the sliding groove 311. The card slot extends along a direction inclined to the height direction, so that the extending direction of the card slot forms an angle with the extending direction of the sliding groove 311, and the angle of the angle is 10°-85°.

[0053] Optionally, as Figure 2 shown, the extending direction of the card slot is inclined downward when viewed from the height direction of the seat frame 1. The specific angle of the angle formed by the card slot and the sliding groove 311 can be 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80° and 85°, etc. The present application does not make specific limitations here.

[0054] Taking the clamping position 312 as a card slot as an example, when the user pushes the limiting portion 321 to the card slot, due to the extending direction of the card slot being inclined downward, the card slot has a certain guiding effect on the limiting portion 321 under the action of gravity. For example, the user can push the limiting portion 321 to the entrance of the card slot, and then the user can sit on the seat cushion 2. At this time, the limiting portion 321 will slide to the bottom of the card slot along the extending direction of the card slot, thus completing the locking of the card slot to the limiting portion 321. In this way, the operation of the user when adjusting the seat cushion 2 is reduced, and the convenience of the user in adjusting the telescopic mechanism 3 is improved.

[0055] Also considering the smoothness of the limiting part 321 when sliding in the card slot, optionally, the card slot can be an arc-shaped card slot, and the limiting part 321 is configured as a spherical bump or a columnar bump. It can be understood that the outer peripheral surface of the spherical bump or the columnar bump is an arc surface. When the spherical bump or the columnar bump slides into the card slot, its arc surface can be adapted to the arc of the card slot, so as to facilitate the limiting part 321 to slide into the bottom of the card slot along the arc-shaped side wall of the card slot or slide out of the card slot.

[0056] In a second aspect, please refer to Figure 5 , the present application also discloses a sofa 100 with adjustable seat cushions, including a sofa body 101 and a sofa footrest 102. Among them, the sofa body 101 includes a first seat frame 101a and a first seat cushion 101b. The first seat cushion 101b is located above the first seat frame 101a along the height direction of the sofa, and the first seat cushion 101b is rotatably connected to the first seat frame 101a. The sofa footrest 102 includes a second seat frame 102a and a second seat cushion 102b. The second seat cushion 102b is arranged above the second seat frame 102a along the height direction of the sofa. The sofa further includes a telescopic mechanism 3. The telescopic mechanism 3 is arranged on the sofa body 101, and the telescopic mechanism 3 is configured to adjust the rotation angle of the first seat cushion 101b relative to the first seat frame 101a. It can be understood that the user can sit on the sofa body 101, and then the legs can be placed on the sofa footrest 102. If the user needs to adjust the sitting posture, the user can adjust the telescopic mechanism 3 to make the first seat cushion 101b rotate relative to the first seat frame 101a, so as to adjust the inclination angle of the first seat cushion 101b to adapt to the sitting posture of the user and improve the comfort of the user.

[0057] In some embodiments, the second seat cushion 102b of the sofa footrest 102 may be rotatably connected to the second seat frame 102a. There may be two telescopic mechanisms 3, one of the telescopic mechanisms 3 is arranged on the sofa body 101, and the other telescopic mechanism 3 is arranged on the sofa footrest 102. Wherein, the telescopic mechanism 3 includes a fixed member 31 and a sliding member 32. The two fixed members 31 of the two telescopic mechanisms 3 are respectively arranged on the first seat frame 101a and the second seat frame 102a, and the two sliding members 32 are respectively arranged on the first seat cushion 101b and the second seat cushion 102b. The sliding member 32 is slidably connected to the fixed member 31. Limit portions 321 are arranged on both of the two sliding members 32, and the limit portions 321 are configured to limit the sliding position of the sliding member 32 relative to the fixed member 31. In other words, telescopic mechanisms 3 are arranged at both the sofa body 101 and the sofa footrest 102, so that the first seat cushion 101b of the sofa body 101 and the second seat cushion 102b of the sofa footrest 102 can respectively adjust the rotation angle relative to the first seat frame 101a and the second seat frame 102a, thereby adjusting the inclination angles of the first seat cushion 101b and the second seat cushion 102b. In this way, when a user uses the sofa, by adjusting the inclination angles of the first seat cushion 101b of the sofa body 101 and the second seat cushion 102b of the sofa footrest 102, the first seat cushion 101b and the second seat cushion 102b can be made to better fit the physiological curves of the human body, so as to improve the comfort of the user when using the sofa.

[0058] It can be understood that for the specific structures of the first seat frame 101a, the second seat frame 102a, and the telescopic mechanism 3, reference may be made to the content described in the foregoing first aspect, and details will not be described herein again.

[0059] The above has introduced in detail a sofa with adjustable seat cushions disclosed in the embodiments of the present application. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand a sofa with adjustable seat cushions of the present application and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A sofa with adjustable seat cushion, characterized in that: include: A seat frame, wherein the seat frame has a receiving space, and the seat frame has a first opening along its own height direction, wherein the first opening is connected to the receiving space; A seat cushion, the seat cushion is located above the seat frame along the height direction, the seat cushion is rotatably connected to the seat frame, and the seat cushion can rotate relative to the seat frame to cover or open the first opening; as well as A telescopic mechanism, the telescopic mechanism includes a fixed part and a sliding part, the fixed part is arranged in the receiving space, the sliding part is located at the end away from the seat cushion and the seat frame that is rotatably connected, one end of the sliding part is arranged on the side of the seat cushion facing the receiving space, the other end of the sliding part is slidably connected to the fixed part along the height direction, and the sliding part is provided with a limiting part, which is configured to limit the sliding position of the sliding part relative to the fixed part.

2. The sofa with adjustable seat cushion as claimed in claim 1, characterized in that: The fixing member is provided with a slide groove along the height direction, and the sliding member can be slidably connected to the slide groove; The fixing member is provided with a plurality of latching positions in sequence along the height direction, and the limiting portion is configured to be connected to one of the latching positions to limit the sliding position of the sliding member relative to the sliding groove.

3. The sofa with adjustable seat cushion as claimed in claim 2, characterized in that: The card position is a card slot opened on at least one side wall of the slide slot, and the card slot is connected to the slide slot, and the card slot extends in a direction inclined to the height direction so that the extension direction of the card slot forms an angle with the extension direction of the slide slot, and the angle of the angle is 10°-85°.

4. The sofa with adjustable seat cushion as claimed in claim 3, characterized in that: The slot is an arc-shaped slot, and the limiting portion is configured as a spherical bump or a columnar bump.

5. The sofa with adjustable seat cushion according to any one of claims 1 to 4, characterized in that: The sofa further comprises a backrest and two armrests, the seat frame has a first end and a second end, the backrest is arranged at the first end, and the two armrests are arranged on the seat frame and located on both sides of the backrest; The first end is hinged to the seat cushion, and the fixing member is arranged at the second end.

6. The sofa with adjustable seat cushion as claimed in claim 5, characterized in that: Along the height direction, a plane where the first end is located is lower than a plane where the second end is located.

7. The sofa with adjustable seat cushion according to any one of claims 1 to 4, characterized in that: The seat frame has a first end and a second end. Along the height direction, a plane where the first end is located is higher than a plane where the second end is located.

8. The sofa with adjustable seat cushion according to any one of claims 1 to 4, characterized in that: The seat frame includes a frame portion and an enclosure portion, the frame portion has the receiving space and the first opening, the enclosure portion is enclosed and arranged on the outer periphery of the frame portion, and a second opening is provided on the enclosure portion, the second opening is connected to the receiving space, and the second opening is arranged adjacent to the telescopic mechanism.

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